Affiliation:
1. Wuhan Polytechnic University
Abstract
As a sequel to the study in determining the permeability of the porous media composed of obstacles of different sizes, exhaustive numerical calculations were conducted using the same two-dimensional numerical models of square rods as in the previous study. The models consist of collections of square rod obstacles of two-, three-, four- and five-different sizes. Computations were carried out to reveal the details of microscopic velocity and pressure fields. There results are integrated to find the macroscopic pressure gradients for collections of multi-sized obstacles. The Ergun type general formula has been proposed along with a definition of an effective average size, which, when substituted into the formula, yields a reasonable estimate for the macroscopic pressure drops in multi-sized obstacles.
Publisher
Trans Tech Publications, Ltd.
Reference7 articles.
1. S. Ergun. Fluid flow through packed columns Chem. Eng. Prog. [J], 48: 89~94(1952).
2. A. Nakayama, R. Liu, Y. Sano, X. Huang, A General Formula for Determing the Permeability of Porous Media Consisting of Obstacles of Different Sizes, Physical and Numerical Simulation of Geotechnical Engineering, Vol. 1 , Pages 3-8(2010).
3. A. Nakayama, F. Kuwahara. Numerical Modeling of Convective Heat Transfer in Porous Media Using Microscopic Structures. Handbook of porous media[M], Pages 441~488(2000).
4. S.V. Patankar. Numerical heat transfer and fluid flow: Hemisphere, Washington, D. C. (1980. ).
5. S.V. Patankar, D. B Spalding. A calculation procedure for heat, mass and momentum transfer in three-dimensional parabolic flows. Int. J. Heat Mass Transfer 15: 1787-1806(1972).
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